Onyxia's Lair (10 player)

• 10
• Onyxia's Lair (10 player)
• Defeat Onyxia in 10-player mode.

Onyxia's Lair is a dungeon & raids achievement earned for defeating Onyxia on 10-player mode.

See also

•  [Onyxia's Lair (Level 60)]
•  [Onyxia's Lair (25 player)]

Patch changes

• Patch 3.2.2 (2009-09-22): Added.
  

External links

• Wowhead
• WoWDB